>>19538673The width is caused by the hips.
See those lovehandles poking out under the outfit on the one in the middle? That's hipbone.
They extend sideways on the way down, which means legs are a little further apart, which means the muscles are a little further apart.
Hiplets can't have a wide booty without it being jello, so when they workout hard they tend not to have a wide ass, but their glutes get big.
On these women, because their hips are so wide by virtue of bone, their glutes are more spread and can grow big and strong without growing outwards (like Bailey).
Compare the one in the middle with the one in white. Glutes are probably the same strength but they're a different shape due to bone structure.